Backpack



FIG. 1 is a perspective view of a backpack showing one embodiment of a new design.

FIG. 2 is a perspective view thereof taken from the front side.

FIG. 3 is another perspective view thereof.

FIG. 4 is a perspective view thereof taken from the right side.

FIG. 5 is another perspective view thereof.

FIG. 6 is a perspective view thereof taken from the rear side.

FIG. 7 is another perspective view thereof.

FIG. 8 is a perspective view thereof taken from the left side.

FIG. 9 is a perspective view of a backpack showing another embodiment of the new design.

FIG. 10 is a perspective view thereof taken from the front side.

FIG. 11 is another perspective view thereof.

FIG. 12 is a perspective view thereof taken from the right side.

FIG. 13 is another perspective view thereof.

FIG. 14 is a perspective view thereof taken from the rear side.

FIG. 15 is another perspective view thereof; and,

FIG. 16 is a perspective view thereof taken from the left side.

The broken lines showing stitches form no part of the claimed design, all other broken lines show portions of the backpack that form no part of the claimed design. 

CLAIM I claim the ornamental design for a backpack, as shown and described. 